Novel snowboard edge tuner

A snowboard edge tuner, including a locking mechanism and a case having a base and a connecting base mutually connected; a first through hole passing through the connecting base and a second through hole passing through both the base and the connecting base are in communication with each other; the locking mechanism includes a sliding block and a first rotating component; the sliding block includes a first pressure plate, a second pressure plate and a first inclined surface; the base includes a second inclined surface corresponding to the first inclined surface; the first rotating component is rotatably fitted on the case, rotates and drives the sliding block to move along the second inclined surface, such that the first pressure plate presses against a sharpening block in the first through hole or the second pressure plate presses against the sharpening block in the second through hole.